I know with some video cameras this is pretty common. How's your data looking? Once you hit a limit you do go down to about half the speed. Other things can factor like if your speeds are slow at the moment or if you're using a 3rd party router and sometimes in this case some cameras require a Persistent IP address to fully work (if that's the case you'll need a business account).

With the residential connections we have a dynamic IP. Business will give you a persistent IP but if they're working fine aside from the delay our advanced tech team might be a good resource. You can reach them at 855-463-9333